linux-kernel - Re: [REGRESSION][v4.13.y][v4.14.y] scsi: libsas: allow async aborts

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Message-ID: <20171205085614.tyyvu4ultnctbzw4@nora.maurer-it.com>
Date:   Tue, 5 Dec 2017 09:57:06 +0100
From:   Fabian Grünbichler <f.gruenbichler@...xmox.com>
To:     Hannes Reinecke <hare@...e.de>
Cc:     Joseph Salisbury <joseph.salisbury@...onical.com>, hch@....de,
        jejb@...ux.vnet.ibm.com, martin.petersen@...cle.com,
        jthumshirn@...e.de, bart.vanassche@....com,
        bblock@...ux.vnet.ibm.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, jth@...nel.org,
        stable@...r.kernel.org, gregkh@...uxfoundation.org
Subject: Re: [REGRESSION][v4.13.y][v4.14.y] scsi: libsas: allow async aborts

On Fri, Nov 17, 2017 at 03:09:37PM +0100, Hannes Reinecke wrote:
> On 11/16/2017 11:08 PM, Joseph Salisbury wrote:
> > Hi Christoph,
> > 
> > A kernel bug report was opened against Ubuntu [0].  After a kernel
> > bisect, it was found that reverting the following commit resolved this bug:
> > 
> > 909657615d9b ("scsi: libsas: allow async aborts")
> > 
> >      
> > The regression was introduced as of v4.12-rc1, and it still exists in
> > 4.14 mainline.
> > 
> > I was hoping to get your feedback, since you are the patch author.  Do
> > you think gathering any additional data will help diagnose this issue,
> > or would it be best to submit a revert request?
> > 
> I'll be checking what's going on there.
> 
> Cheers,
> 
> Hannes

Any news about this regression? Any traces / data affected users can
provide?

Thanks!